package org.yaosheng.blog.controller.admin;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.data.web.PageableDefault;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;
import org.yaosheng.blog.NotFoundException;
import org.yaosheng.blog.po.Blog;
import org.yaosheng.blog.po.User;
import org.yaosheng.blog.service.BlogService;
import org.yaosheng.blog.service.TagService;
import org.yaosheng.blog.service.TypeService;
import org.yaosheng.blog.vo.BlogQuery;

import javax.servlet.http.HttpSession;

/**
 * Created by yaosheng on 2019/12/10.
 */
@Controller
@RequestMapping("/admin")
public class BlogController {

    @Autowired
    private BlogService blogService;

    @Autowired
    private TypeService typeService;

    @Autowired
    private TagService tagService;

    @GetMapping("/blogs")
    public String blogs(@PageableDefault(size = 2,sort = {"updateTime"},direction = Sort.Direction.DESC)Pageable pageable,
                        BlogQuery blog, Model model) {
        model.addAttribute("types",typeService.listType());
        model.addAttribute("page", blogService.listBlog(pageable, blog));
        return "admin/blogs";
    }

//    @PostMapping("/blogs/search")
//    public String search(@PageableDefault(size = 2,sort = {"updateTime"},direction = AgentBuilder.Default.
//            Transformation.Resolution.Sort.Direction.DESC)Pageable pageable,
//                         BlogQuery blog,Model model) {
//        model.addAttribute("page", blogService.listBlog(pageable, blog));
//        return "admin/blogs :: blogList";
//    }

    @GetMapping("/blogs/input")
    public String input(Model model){
        model.addAttribute("types",typeService.listType());
        model.addAttribute("tags",tagService.listTag());
        model.addAttribute("blog",new Blog());
        return "admin/blogs-input";
    }

    @GetMapping("/blogs/{id}/input")
    public String editInput(@PathVariable Long id,Model model){
        model.addAttribute("types",typeService.listType());
        model.addAttribute("tags",tagService.listTag());
        Blog blog = blogService.getBlog(id);
        blog.init();
        model.addAttribute("blog",blog);
        return "admin/blogs-edit";
    }

    @PostMapping("blogs")
    public String post(Blog blog, HttpSession session, RedirectAttributes attributes) throws NotFoundException{
        blog.setUser((User) session.getAttribute("user"));
        blog.setType(typeService.getType(blog.getType().getId()));
        blog.setTags(tagService.listTag(blog.getTagIds()));
        Blog b;
        //防止其他属性初始化
        if (blog.getId() == null) {
            b =  blogService.saveBlog(blog);
        } else {
            b = blogService.updateBlog(blog.getId(), blog);
        }
        if (b == null){
            attributes.addFlashAttribute("message", "操作失败");
        }else{
            attributes.addFlashAttribute("message", "操作成功");
        }
        return "redirect:/admin/blogs";
    }

    @GetMapping("/blogs/{id}/delete")
    public String delete(@PathVariable Long id, RedirectAttributes attributes){
        blogService.deleteBlog(id);
        attributes.addFlashAttribute("message", "删除成功");
        return "redirect:/admin/blogs";
    }
}